#include <stdio.h>
#include "pico/stdlib.h"
#include "pico/binary_info.h"
#include "hardware/spi.h"

#include "wizchip_conf.h"
#include "bsp_spi.h"
#include "dhcp.h"       // Use dhcp
#include "socket.h"     // Use socket
#include "httpServer.h" // Use http
#include "webpage.h"    //Web Source Code

#define SOCKET_ID 0                      // Socket number
#define ETHERNET_BUF_MAX_SIZE (1024 * 2) // Send and receive cache size
#define DHCP_RETRY_COUNT 5               // DHCP retry times
#define MAX_HTTPSOCK 3                   // MAX HTTP SOCKET

/**
 * @brief   Timer callback processing function, used for dhcp timing processing
 * @param   repeating :Timer structure
 * @return  bool
 */
bool repeating_timer_callback(struct repeating_timer *t);

/**
 * @brief   Initialization of chip network information
 * @param   conf_info :Static configuration information
 * @return  none
 */
void network_init(wiz_NetInfo *conf_info);

/**
 * @brief   chip restart
 * @param   none
 * @return  none
 */
void chip_restart(void);
/* Network information to be configured. */
wiz_NetInfo net_info = {
    .mac = {0x00, 0x44, 0x55, 0x66, 0xed, 0x2e}, // Configured MAC address
    .ip = {192, 168, 1, 10},                     // Configured IP address
    .sn = {255, 255, 255, 0},                    // Configured subnet mask
    .gw = {192, 168, 1, 1},                      // Configured gateway
    .dns = {8, 8, 8, 8},                         // Configured domain address
    .dhcp = NETINFO_DHCP};                       // Configured dhcp model,NETINFO_DHCP:use dhcp; NETINFO_STATIC: use static ip.

static uint8_t http_tx_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {
    0,
};
static uint8_t http_rx_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {
    0,
};
static uint8_t dhcp_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {
    0,
};
static uint8_t socknumlist[] = {1, 2, 3}; // http socknumlist
static uint8_t breakout_flag = 0;            // Define the DHCP acquisition flag
uint16_t LED_pin[10] = {
    25,
};
int main()
{
    int i;
    struct repeating_timer timer; // Define the timer structure
    wiz_NetInfo get_info;
    /* MCU init */
    stdio_init_all();     // Initialize the main control peripheral
    wizchip_initialize(); // Initialize the chip interface
    wizchip_setnetinfo(&net_info); // Configure once first
    
    /*dhcp init*/
    DHCP_init(SOCKET_ID, dhcp_ethernet_buf);                              // DHCP initialization
    add_repeating_timer_ms(1000, repeating_timer_callback, NULL, &timer); // Add DHCP 1s Tick Timer handler

    printf("wiznet chip http server example.\r\n");
    network_init(&net_info);              // Configuring Network Information
    print_network_information(&get_info); // Read back the configuration information and print it

    httpServer_init(http_tx_ethernet_buf, http_rx_ethernet_buf, MAX_HTTPSOCK, socknumlist); // HTTP Server initialization
    reg_httpServer_cbfunc(chip_restart, NULL);
    // GPIO initialization
    {
        gpio_init(LED_pin[0]);
        gpio_set_dir(LED_pin[0], GPIO_OUT);
    }
    // Index page and netinfo / base64 image demo
    {
    reg_httpServer_webContent((uint8_t *)"index.html", (uint8_t *)index_page);          // index.html 		: Main page example
    reg_httpServer_webContent((uint8_t *)"netinfo.html", (uint8_t *)netinfo_page);      // netinfo.html 	: Network information example page
    reg_httpServer_webContent((uint8_t *)"netinfo.js", (uint8_t *)w5x00web_netinfo_js); // netinfo.js 		: JavaScript for Read Network configuration 	(+ ajax.js)
    reg_httpServer_webContent((uint8_t *)"img.html", (uint8_t *)img_page);              // img.html 		: Base64 Image data example page

    // Example #1
    reg_httpServer_webContent((uint8_t *)"dio.html", (uint8_t *)dio_page);      // dio.html 		: Digital I/O control example page
    reg_httpServer_webContent((uint8_t *)"dio.js", (uint8_t *)w5x00web_dio_js); // dio.js 			: JavaScript for digital I/O control 	(+ ajax.js)

    // AJAX JavaScript functions
    reg_httpServer_webContent((uint8_t *)"ajax.js", (uint8_t *)w5x00web_ajax_js); // ajax.js			: JavaScript for AJAX request transfer
    }
    while (true)
    {
        for (i = 0; i < MAX_HTTPSOCK; i++)
        {
            httpServer_run(i);
        }
    }
}

void network_init(wiz_NetInfo *conf_info)
{
    int count = 0;
    uint8_t dhcp_retry = 0;

    if (conf_info->dhcp == NETINFO_DHCP)
    {
        while (true)
        {
            switch (DHCP_run()) // Do the DHCP client
            {
            case DHCP_IP_LEASED: // DHCP resolves the domain name successfully
            {
                if (breakout_flag == 0)
                {
                    printf("DHCP success\r\n");
                    getIPfromDHCP((*conf_info).ip);
                    getGWfromDHCP((*conf_info).gw);
                    getSNfromDHCP((*conf_info).sn);
                    getDNSfromDHCP((*conf_info).dns);
                    wizchip_setnetinfo(conf_info); // Configuring Network Information
                    close(SOCKET_ID);              // After dhcp close the socket, avoid errors in later use
                    breakout_flag = 1;
                }
                break;
            }
            case DHCP_FAILED:
            {
                printf(" DHCP failed \r\n");
                count++;
                if (count <= DHCP_RETRY_COUNT) // If the number of times is less than or equal to the maximum number of times, try again
                {
                    printf("DHCP timeout occurred and retry %d \r\n", count);
                }
                else if (count > DHCP_RETRY_COUNT) // If the number of times is greater than DHCP fails
                {
                    breakout_flag = 1; // if DHCP fail, use the static
                    DHCP_stop();       // Stop processing DHCP protocol
                    conf_info->dhcp = NETINFO_STATIC;
                    wizchip_setnetinfo(conf_info); // Configuring Network Information
                    break;
                }
                break;
            }
            }
            if (breakout_flag)
            {
                printf("config success\r\n");
                break;
            }
        }
    }
    else
    {
        wizchip_setnetinfo(conf_info); // Configuring Network Information
    }
}

bool repeating_timer_callback(struct repeating_timer *t)
{
    DHCP_time_handler(); // DHCP 1s Tick Timer handler
    httpServer_time_handler();
    return true;
}

void chip_restart(void)
{
    gpio_init(PIN_RST);
    gpio_set_dir(PIN_RST, GPIO_OUT);

    gpio_put(PIN_RST, 0);
    sleep_ms(1000);

    gpio_put(PIN_RST, 1);
    sleep_ms(1000);
}